About the nature of diffusion anisotropy in CdS crystals

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2000
• Main Authors: Borkovskaya, L.V., Dzhumaev, B.R., Khomenkova, L.Yu., Korsunskaya, N.E., Markevich, I.V., Sheinkman, M.K.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2000
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/121175
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: About the nature of diffusion anisotropy in CdS crystals / L.V. Borkovskaya, B.R.Dzhumaev, L.Yu. Khomenkova, N.E. Korsunskaya, I.V. Markevich, M.K. Sheinkman // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2000. — Т. 3, № 3. — С. 282-286. — англ.

Electrodiffusion of copper into nominally undoped high-resistivity CdS crystals at 250-400°C has been investigated. A strong diffusion anisotropy has been observed, copper diffusion in perpendicular to the c-axis direction being more than one order faster as compared with its diffusion in parallel to the c-axis direction. The effect has been shown to be not due to greater density of perpendicular to the c-axis dislocations than that of parallel to the c-axis ones, as it was thought earlier. Electrically active dislocations lying in the basal plane are supposed to be channels of fast diffusion owing to their intensive decoration with intrinsic defects and residual impurities.